YURAC BARRIENTOS, RATKO JOVAN
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YURAC BARRIENTOS, RATKO JOVAN
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yratko@udd.cl
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24436839000

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2024 2024 2023 2023 2022 2022 2021 2021 2020 2020 0.0 0.0 1.0 1.0 2.0 2.0 3.0 3.0 4.0 4.0 5.0 5.0

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Time to Surgery for Unstable Thoracolumbar Fractures in Latin America—A Multicentric Study

2021 , Alfredo Guiroy , Charles A. Carazzo , Juan J. Zamorano , Juan P. Cabrera , Andrei F. Joaquim , Joana Guasque , Ericson Sfredo , Kevin White , YURAC BARRIENTOS, RATKO JOVAN , Asdrubal Falavigna

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In Reply to the Letter to the Editor Regarding “Risk Factors for Postoperative Complications After Surgical Treatment of Type B and C Injuries of the Thoracolumbar Spine”

2023 , Juan P. Cabrera , Charles A. Carazzo , Alfredo Guiroy , Kevin P. White , Joana Guasque , Ericson Sfreddo , Andrei F. Joaquim , YURAC BARRIENTOS, RATKO JOVAN

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Minimally Invasive Versus Open Surgery for the Treatment of Types B and C Thoracolumbar Injuries: A PRISMA Systematic Review

2021 , Charles André Carazzo , YURAC BARRIENTOS, RATKO JOVAN , Alfredo Guiroy , Juan J. Zamorano , Juan P. Cabrera , Andrei F. Joaquim

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Management of Unilateral Cervical Facet Joint Dislocation in Neurologically Intact Patients: Results of an Ao Spine latin American Survey

2021 , Andrei F. Joaquim , YURAC BARRIENTOS, RATKO JOVAN , Marcelo Valacco , Orlando R. Neto , Charles A. Carazzo , Juan P. Cabrera , Alisson R. Teles , Ericson Sfreddo , Asdrubal Falavigna

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Unstable Thoracolumbar Injuries: Factors Affecting the Decision for Short-Segment vs Long-Segment Posterior Fixation

2022 , Juan P. Cabrera , Alfredo Guiroy , Charles A. Carazzo , YURAC BARRIENTOS, RATKO JOVAN , Marcelo Valacco , Emiliano Vialle , Andrei F. Joaquim

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Risk Factors for Postoperative Complications After Surgical Treatment of Type B and C Injuries of the Thoracolumbar Spine

2022 , Juan P. Cabrera , Charles A. Carazzo , Alfredo Guiroy , Kevin P. White , Joana Guasque , Ericson Sfreddo , Andrei F. Joaquim , YURAC BARRIENTOS, RATKO JOVAN , Carlos Zanardi , Nelson Picard , Maximiliano Donato , Alberto Gorgas , Efrén Peña , Óscar González , Sergio Mandiola , Rodrigo Remondino , Pablo Nicolas Ortiz , Jose Jimenez , Jose de Jesus Gonzalez , Oscar Martinez , Pedro Reyes , Juan Jara , Julio Burgos , Martin Gagliardi , Alejandro Morales Ciancio , Daniel Uruchi , Ricardo Martínez , Nicolás Mireles , Paulo Henrique Meira , Nelson Astur , Robert Meves , Rian Vieira , Renan Borges , Jennyfer Chaves , Ricardo Guimaraes , Matheus Balen , Juan J. Zamorano , Guilherme Rocha Zanini , Germano Senna , Paulo Roberto Cabrera , Fausto Ordoñez , FranlyArismendy Vásquez , Jefferson Daniel , Jose Carlos Veiga , Pedro Del Santoro , Andre Luis Sebben , Vinicius Orso , Ricardo Penteado , Christian Pino , Esther Velarde , Charbel Jacob , Wanderson Dias , Jose Ignacio Ujhelly , Ayelen Estay , Gustavo Noleto , Icaro de Sousa , Robson Amorim , Marlon Carneiro , Fabián Montoya , David Flórez , Raphael Augusto Corrêa , Bastianon Santiago , Alvaro Silva Gonzalez

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Accuracy and reliability of the AO Spine subaxial cervical spine classification system grading subaxial cervical facet injury morphology

2021 , Juan P. Cabrera , Ratko Yurac , Alfredo Guiroy , Andrei F. Joaquim , Charles A. Carazzo , Juan J. Zamorano , Kevin P. White , Marcelo Valacco

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Streamlining the Journey of Research Into Clinical Practice: Making Your Patients and Practice Flourish Optimizing Management and Minimizing Risk of Osteoporotic Vertebral Fractures – Perspectives of the AO Spine KF Trauma and Infection Group Key Opinion Leaders

2024 , Andrei F. Joaquim , Sebastian F. Bigdon , Richard Bransford , Harvinder Singh Chhabra , YURAC BARRIENTOS, RATKO JOVAN , Vishal Kumar , Mohammad El-Sharkawi , Lorin M. Benneker , Brian A. Karamian , Jose A. Canseco , Julian Scherer , Ahmed Abdelazim Hassan , Gregory D. Schroeder , Cumhur F. Öner , Shanmuganathan Rajasekaran , Emiliano Vialle , Rishi M. Kanna , Alexander R. Vaccaro , Jin Tee , Gaston Camino-Willhuber , Charles G. Fisher , Marcel F. Dvorak , Klaus J. Schnake

Study Design Literature review with clinical recommendations. Objective To highlight important studies about osteoporotic spinal fractures (OF) that may be integrated into clinical practice based on the assessment of the AO Spine KF Trauma and Infection group key opinion leaders. Methods 4 important studies about OF that may affect current clinical practice of spinal surgeons were selected and reviewed with the aim of providing clinical recommendations to streamline the journey of research into clinical practice. Recommendations were graded as strong or conditional following the GRADE methodology. Results 4 studies were selected. Article 1: a validation of the Osteoporotic Fracture (OF)-score to treat OF fractures. Conditional recommendation to incorporate the OF score in the management of fractures to improve clinical results. Article 2: a randomized multicenter study comparing romosozumab/alendronate vs alendronate to decrease the incidence of new vertebral fractures. Strong recommendation that the group receiving romosozumab/alendronate had a decreased risk of new OF when compared with the alendronate only group only. Article 3: a systematic literature review of spinal orthoses in the management of. Conditional recommendation to prescribe a spinal orthosis to decrease pain and improve quality of life. Article 4: post-traumatic deformity after OF. A conditional recommendation that middle column injury and pre-injury use of steroids may lead to high risk of post-traumatic deformity after OF. Conclusions Management of patients with OF is still complex and challenging. This review provides some recommendations that may help surgeons to better manage these patients and improve their clinical practice.

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Letter to the Editor: Is COVID-19 the Cause of Delayed Surgical Treatment of Spine Trauma in Latin America?

2020 , Juan P. Cabrera , Ratko Yurac , Alfredo Guiroy , Charles A. Carazzo , Andrei F. Joaquim , Juan J. Zamorano , Marcelo Valacco

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CT Scan in Subaxial Cervical Facet Injury: Is It Enough for Decision-Making?

2021 , Juan P. Cabrera , YURAC BARRIENTOS, RATKO JOVAN , Andrei F. Joaquim , Alfredo Guiroy , Charles A. Carazzo , Marcelo Valacco , ZAMORANO PÉREZ, JUAN JOSÉ

Study Design: Cross-sectional survey. Objectives: Assessment of subaxial cervical facet injuries using the AO Spine Subaxial Cervical Spine Injury Classification System is based on CT scan findings. However, additional radiological evaluations are not directly considered. The aim of this study is to determine situations in which spine surgeons request additional radiological exams after a facet fracture. Methods: A survey was sent to AO Spine members from Latin America. The evaluation considered demographic variables, routine use of the Classification, as well as the timepoint at which surgeons requested a cervical MRI, a vascular study, and/ or dynamic radiographs before treatment of facet fractures. Results: There was 229 participants, mean age 42.9 ± 10.2 years; 93.4% were men. Orthopedic surgeons 57.6% with 10.7 ± 8.7 years of experience in spine surgery. A total of 86% used the Classification in daily practice. An additional study (MRI/vascular study/and dynamic radiographs) was requested in 53.3%/9.6%/43.7% in F1 facet injuries; 76.0%/20.1%/50.2% in F2; 89.1%/65.1%/28.4% in F3; and 94.8%/66.4%/16.6% in F4. An additional study was frequently required: F1 72.5%, F2 86.9%, F3 94.7%, and F4 96.1%. Conclusions: Spine surgeons generally requested additional radiological evaluations in facet injuries, and MRI was the most common. Dynamic radiographs had a higher prevalence for F1/F2 fractures; vascular studies were more common for F3/F4 especially among surgeons with fewer years of experience. Private hospitals had a lower spine trauma cases/year and requested more MRI and more dynamic radiographs in F1/F2. Neurosurgeons had more vascular studies and dynamic radiographs than orthopedic surgeons in all facet fractures.

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